TY  - BOOK
AU  - Kern,M.Kathleen
TI  - Virtual reference best practices: tailoring services to your library 
SN  - 9780838909751 (papel alcalino)
AV  - Z711.45 K47
PY  - 2009///
CY  - Chicago
PB  - American Library Association
KW  - Servicios de consulta electrónicos (Bibliotecas)
UR  - http://www.loc.gov/catdir/toc/ecip0815/2008015379.html
ER  -